RESTRICTION ELEMENT TRAP FOR USE WITH AND ACTUATION ELEMENT OF A DOWNHOLE APPARATUS AND METHOD OF USE - Patent 2094934

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EP 2 094 934 A2

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(88)	Date of publication A3:
	21.08.2008

(43)	Date of publication:
	02.09.2009 Bulletin 2009/36

(21)	Application number: 07862472.3

(22)	Date of filing: 04.12.2007

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International Patent Classification (IPC):

E21B 10/32^(2006.01)
E21B 23/00^(2006.01)

E21B 34/14^(2006.01)

(86)	International application number:
	PCT/US2007/024795

(87)	International publication number:
	WO 2008/070051 (12.06.2008 Gazette 2008/24)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

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Priority:

04.12.2006 US 872744 P

(71)	Applicant: BAKER HUGHES INCORPORATED
	Houston TX 77210-4740 (US)

(72)	Inventor:
	RADFORD, Steven R. The Woodlands, TX 77382 (US)

(74)	Representative: Hano, Christian
	v. Füner Ebbinghaus Finck Hano Patentanwälte Mariahilfplatz 3 81541 München 81541 München (DE)

(54)	RESTRICTION ELEMENT TRAP FOR USE WITH AND ACTUATION ELEMENT OF A DOWNHOLE APPARATUS AND METHOD OF USE